A-holes are A-holes, bike or not. I was driving around the Delaware River area in Bucks County, PA today with my wife. A-holes in pickup trucks yelling obscenities at other drivers, a motorcycle "club" taking over a road near a art festival at Tinicum Park, drivers getting enraged that other drivers in front of them were a little to slow on steel grated, narrow bridges over the Delaware, etc. Nothing directed at me, but I had to "witness" all of this. (Sorry, we're originally from NE Ohio...).

Just be careful out there and keep your cool.